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1. 发明授权

US06442311B1 Optical device having modified transmission characteristics by localized thermal treatment 有权
标题翻译：通过局部热处理具有改进的传输特性的光学装置
公开(公告)号：US06442311B1
公开(公告)日：2002-08-27
申请号：US09350205
申请日：1999-07-09
申请人： Giovanni Barbarossa , Chellappan Narayanan
发明人： Giovanni Barbarossa , Chellappan Narayanan
IPC分类号： G02B634
CPC分类号： G02B6/13 , G02B6/105 , G02B2006/12171
摘要： Transmission characteristics of an optical device 200, fabricated from multiple layers 16, 27, 28 of silica-based glass on a silicon substrate 26, are modified by localized thermal treatment. The beam 501 of a carbon-dioxide (CO2) laser 510 is used to selectively soften the core and/or cladding material of a waveguide structure during or after the fabrication process. In one application, softening relieves the strain developed between the waveguide structure and the silicon substrate and substantially reduces or eliminates birefringence. In a second application, the CO2 laser is operated at another power level in order to modify the index of refraction. Changes in the index of refraction change the speed of light through a waveguide thereby changing the phase shift associated with the waveguide. In a third application, the CO2 laser is operated at yet another power level to increase the transmission loss of the waveguide. In all of the embodiments, heat treatment is substantially faster and/or less expensive than known techniques for modifying the transmission characteristics of an optical device.
摘要翻译：通过局部热处理改变在硅衬底26上由二氧化硅基玻璃的多层16,27,28制成的光学器件200的透射特性。二氧化碳（CO2）激光器510的光束501用于在制造过程中或之后选择性地软化波导结构的芯和/或包层材料。在一个应用中，软化消除了在波导结构和硅衬底之间产生的应变，并且基本上减少或消除了双折射。在第二个应用中，CO2激光器在另一个功率电平下工作，以便改变折射率。折射率的变化通过波导改变光的速度，从而改变与波导相关的相移。在第三个应用中，CO2激光器在另一功率电平下操作以增加波导的传输损耗。在所有实施例中，热处理比用于修改光学器件的传输特性的已知技术快得多和/或更便宜。

2. 发明授权

US07760972B2 Multiport switch for optical performance monitor 有权
标题翻译：用于光学性能监视器的多端口开关
公开(公告)号：US07760972B2
公开(公告)日：2010-07-20
申请号：US11389812
申请日：2006-03-27
申请人： Joe Wen , Samuel Liu , Giovanni Barbarossa
发明人： Joe Wen , Samuel Liu , Giovanni Barbarossa
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： H04Q11/0062 , H04Q11/0005 , H04Q2011/0015 , H04Q2011/003 , H04Q2011/0039 , H04Q2011/0083
摘要： The present invention provides a switch assembly for use with a single-port OPM to realize a multi-port OPM having improved reliability. In one embodiment, an N×1 optical switch assembly, wherein N is an integer greater than one, is provided. The optical switch assembly includes N optical input ports, N micro-electro-mechanical system (MEMS) variable optical attenuators (VOAs), where each MEMS VOA is optically coupled to a respective optical input port and is operable between an on position and an off position, and an N×1 optical combiner optically coupled to the N MEMS VOAs. Each MEMS VOA is configured to transmit an optical signal from a respective one of the optical input ports to the N×1 optical combiner in the on position and to not transmit the optical signal in the off position.
摘要翻译：本发明提供了一种与单端口OPM一起使用的开关组件，以实现具有改进的可靠性的多端口OPM。在一个实施例中，提供N×1光开关组件，其中N是大于1的整数。光开关组件包括N个光输入端口，N个微机电系统（MEMS）可变光衰减器（VOA），其中每个MEMS VOA光耦合到相应的光输入端口，并且可在接通位置和断开位置以及与N个MEMS VOA光耦合的N×1个光学组合器。每个MEMS VOA被配置为将光信号从相应的一个光输入端口传送到处于接通位置的N×1光合并器，并且不将光信号发送到关位置。

3. 发明申请

US20100061726A1 Dynamically Reconfiguring An Optical Network Using An Ethernet Switch 审中-公开
标题翻译：使用以太网交换机动态重新配置光网络
公开(公告)号：US20100061726A1
公开(公告)日：2010-03-11
申请号：US12207450
申请日：2008-09-09
申请人： Giovanni Barbarossa , Xiaodong Duan , Samuel Liu
发明人： Giovanni Barbarossa , Xiaodong Duan , Samuel Liu
IPC分类号： H04J14/00
CPC分类号： H04J14/028 , H04J14/0206 , H04J14/0212 , H04J14/0226 , H04J14/0227 , H04Q11/0062 , H04Q11/0071
摘要： An Ethernet switch is used to dynamically reconfigure an optical network having a fixed optical layer. The Ethernet switch is incorporated into a transmission node of the optical network to selectively route data streams received through its input channels to one of the output channels. The data streams at the output channels are multiplexed into multiple wavelength channels of a multiplexed optical signal, and the wavelength channels are selectively dropped at local nodes of the optical network. In addition, the Ethernet switch can be used to reroute data from a single data stream to multiple wavelength channels, and thereby perform sub-wavelength multiplexing.
摘要翻译：以太网交换机用于动态地重新配置具有固定光层的光网络。以太网交换机被并入到光网络的传输节点中以选择性地将通过其输入信道接收的数据流路由到输出信道之一。输出通道的数据流被复用到复用光信号的多个波长信道中，波长信道被选择性地丢弃在光网络的本地节点处。此外，以太网交换机可以用于将数据从单个数据流重新路由到多个波长信道，从而执行子波长复用。

4. 发明授权

US07577369B1 Systems for deploying an optical network 有权
标题翻译：用于部署光网络的系统
公开(公告)号：US07577369B1
公开(公告)日：2009-08-18
申请号：US11098837
申请日：2005-04-04
申请人： Giovanni Barbarossa , Roger A. Hajjar
发明人： Giovanni Barbarossa , Roger A. Hajjar
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/25133 , H04B10/58
摘要： A transmitter on an integrated circuit chip is disclosed that employs a laser, modulator, and a dispersion compensator module and a modulator for overcoming chromatic dispersion and polarization dependent loss effects. With the present invention, the dispersion compensator module is placed on a chip, either integrated or monolithic, for operation with a laser and a modulator without the need to compensate for dispersion within a separate unit that is not part of the chip. The dispersion compensator module can be implemented, for example, with a ring resonator, an etalon or a Mach-Zehnder interferometer. In a first aspect of the invention, the optical transmitter module of the present invention provides a cost-effective solution for upgrading from an existing optical network to a faster optical network, such as upgrading from a 2.5 Gbps to a 10 Gbps network. In a second aspect of the invention, the optical transmitter module of the present invention provides a means to deploy an optical network at the transmission rate of 10 Gbps, 40 Gbps and faster.
摘要翻译：公开了集成电路芯片上的发射机，其使用激光器，调制器和色散补偿器模块以及用于克服色散和偏振相关损耗效应的调制器。利用本发明，色散补偿器模块被放置在集成或单片的芯片上，用于与激光器和调制器一起操作，而不需要补偿不在芯片的一部分的单独单元内的色散。色散补偿器模块可以例如用环形谐振器，标准具或马赫 - 曾德尔干涉仪来实现。在本发明的第一方面中，本发明的光发射机模块为从现有的光网络升级到更快的光网络提供了一种具有成本效益的解决方案，例如从2.5Gbps升级到10Gbps网络。在本发明的第二方面，本发明的光发射机模块提供了以10Gbps，40Gbps和更快的传输速率部署光网络的手段。

5. 发明申请

US20070223861A1 Multiport switch for optical performance monitor 有权
标题翻译：用于光学性能监视器的多端口开关
公开(公告)号：US20070223861A1
公开(公告)日：2007-09-27
申请号：US11389812
申请日：2006-03-27
申请人： Joe Wen , Samuel Liu , Giovanni Barbarossa
发明人： Joe Wen , Samuel Liu , Giovanni Barbarossa
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： H04Q11/0062 , H04Q11/0005 , H04Q2011/0015 , H04Q2011/003 , H04Q2011/0039 , H04Q2011/0083
摘要： The present invention provides a switch assembly for use with a single-port OPM to realize a multi-port OPM having improved reliability. In one embodiment, an N×1 optical switch assembly, wherein N is an integer greater than one, is provided. The optical switch assembly includes N optical input ports, N micro-electro-mechanical system (MEMS) variable optical attenuators (VOAs), where each MEMS VOA is optically coupled to a respective optical input port and is operable between an on position and an off position, and an N×1 optical combiner optically coupled to the N MEMS VOAs. Each MEMS VOA is configured to transmit an optical signal from a respective one of the optical input ports to the N×1 optical combiner in the on position and to not transmit the optical signal in the off position.
摘要翻译：本发明提供了一种与单端口OPM一起使用的开关组件，以实现具有改进的可靠性的多端口OPM。在一个实施例中，提供了N×1个大于1的整数的Nx1光开关组件。光开关组件包括N个光输入端口，N个微机电系统（MEMS）可变光衰减器（VOA），其中每个MEMS VOA光耦合到相应的光输入端口，并且可在接通位置和断开位置以及与N个MEMS VOA光耦合的Nx1光学组合器。每个MEMS VOA被配置为将光信号从相应的一个光输入端口传送到处于接通位置的Nx1光组合器，并且不将光信号发送到关位置。

6. 发明申请

US20060198574A1 Optical switch 有权
标题翻译：光开关
公开(公告)号：US20060198574A1
公开(公告)日：2006-09-07
申请号：US11070450
申请日：2005-03-01
申请人： Ming Cai , Xuehua Wu , Giovanni Barbarossa
发明人： Ming Cai , Xuehua Wu , Giovanni Barbarossa
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： G02B6/3524 , G02B6/3528 , G02B6/3558 , G02B6/3568
摘要： The present invention relates to an optical switch. The optical switch includes at least two binary control elements movable between a first and second position. The binary control elements include an at least one angle tuning element for adjusting the pathway of an optical signal. With a binary control element in the first position, the angle tuning element is able to adjust the pathway of an optical signal. With the binary control element in a second position, the angle tuning element is not able to adjust the optical pathway of an optical signal. The optical switch of the present invention can also concurrently switch multiple optical signals in parallel.
摘要翻译：本发明涉及光开关。光学开关包括在第一和第二位置之间可移动的至少两个二进制控制元件。二进制控制元件包括用于调节光信号的路径的至少一个角度调谐元件。在二进制控制元件处于第一位置时，角度调谐元件能够调整光信号的路径。当二进制控制元件处于第二位置时，角度调谐元件不能调节光信号的光路。本发明的光开关还可以并行地同时切换多个光信号。

7. 发明申请

US20050265653A1 Apparatus, system and method for an adiabatic coupler for multi-mode fiber-optic transmission systems 有权
标题翻译：用于多模光纤传输系统的绝热耦合器的装置，系统和方法
公开(公告)号：US20050265653A1
公开(公告)日：2005-12-01
申请号：US11051742
申请日：2005-02-03
申请人： Ming Cai , Giovanni Barbarossa
发明人： Ming Cai , Giovanni Barbarossa
IPC分类号： G02B6/028 , G02B6/14 , G02B6/255 , G02B6/26
CPC分类号： G02B6/262 , G02B6/0288 , G02B6/14 , G02B6/2551 , G02B6/2552
摘要： An improved fiber-optic communications system comprises a multi-mode waveguide carrying an optical signal, a single-mode waveguide optically coupled to and receiving the optical signal from the multi-mode waveguide and an adiabatic coupler optically coupled between the multi-mode waveguide and the single-mode waveguide. The multi-mode and single-mode waveguides may be optical fibers. The adiabatic coupler may comprise a tapered core surrounded by a cladding. Alternatively, the adiabatic coupler may comprise a core surrounded by a cladding, wherein the refractive index of at least one of the core and the cladding varies over the length of the adiabatic coupler.
摘要翻译：改进的光纤通信系统包括承载光信号的多模式波导，与多模波导光耦合并接收光信号的单模波导和光耦合在多模波导与单模波导。多模和单模波导可以是光纤。绝热耦合器可以包括被包层包围的锥形芯。或者，绝热耦合器可以包括由包层围绕的芯，其中芯和包层中的至少一个的折射率在绝热耦合器的长度上变化。

8. 发明申请

US20050074219A1 Optical modules employing glass-sealed fiber feedthru with C-seal 有权
标题翻译：采用玻璃密封纤维的光学模块，带有C型密封
公开(公告)号：US20050074219A1
公开(公告)日：2005-04-07
申请号：US10678526
申请日：2003-10-03
申请人： Herbert Dela Rosa , Giovanni Barbarossa , William Guan , Weidong Zhu , Khanh Ly , Ching-Lin Chang
发明人： Herbert Dela Rosa , Giovanni Barbarossa , William Guan , Weidong Zhu , Khanh Ly , Ching-Lin Chang
IPC分类号： G02B6/38 , G02B6/42 , G02B6/44 , G02B6/00
CPC分类号： G02B6/4428 , G02B6/3897 , G02B6/4248
摘要： An optical module box made of aluminum that has a reworkable glass-sealed fiber feedthru is disclosed. A fiber is inserted through a glass seal and a C-seal for hermetically sealing an opening in the optical module box. In a first embodiment, a module box employing a single-fiber fiber feedthru is described. In a second embodiment, a module box employing a 2-fiber feedthru is described. In a third embodiment, a module box employing a ribbon fiber feedthru is described. A module box having an opening with a single-fiber feedthru, comprising a C-seal; a glass sealed feedthru having a front tube and a back tube, the back tube of the glass sealed feedthru extending through the. C-seal; and a fiber passing through the glass sealed feedthru and the C-seal, thereby hermetically sealed into the opening of the module box.
摘要翻译：公开了一种由铝制成的光学模块盒，其具有可再加工的玻璃密封纤维馈送。纤维通过玻璃密封件和C形密封件插入，用于密封光学模块盒中的开口。在第一实施例中，描述了采用单纤维纤维馈送的模块盒。在第二实施例中，描述了采用2-光纤馈通的模块盒。在第三实施例中，描述了采用带状光纤馈通的模块盒。一种具有带有单纤维进料口的开口的模块箱，包括C型密封件; 具有前管和后管的玻璃密封进料器，玻璃的后管密封进料口延伸通过。密封; 以及通过玻璃密封的进料和C型密封件的纤维，从而气密地密封到模块盒的开口中。

9. 发明授权

US6003222A Manufacture of tapered waveguides 失效
标题翻译：锥形波导的制造
公开(公告)号：US6003222A
公开(公告)日：1999-12-21
申请号：US891439
申请日：1997-07-10
申请人： Giovanni Barbarossa
发明人： Giovanni Barbarossa
IPC分类号： G02B6/12 , G02B6/122 , G02B6/125 , G02B6/13 , G02B6/30 , H01P11/00
CPC分类号： G02B6/305 , G02B6/1228 , G02B6/125 , G02B2006/12195 , Y10T29/49016
摘要： The specification describes techniques for fabricating tapered waveguides in planar photonic integrated circuits with the tapers formed in the z-direction (thickness). The tapers are formed by depositing the core layer in two operations. After depositing the first core layer, the layer is masked, and a step is formed in the first layer. When the second core layer is deposited over the step, a smooth taper results. The core layers are preferably formed by flame hydrolysis. During consolidation the two core layers coalesce into a single homogeneous layer with a smooth taper in the thickness dimension of the waveguide.
摘要翻译：本说明书描述了在z方向（厚度）上形成锥形的平面光子集成电路中制造锥形波导的技术。通过在两个操作中沉积芯层形成锥形。在沉积第一芯层之后，对该层进行掩模，并且在第一层中形成台阶。当第二芯层沉积在台阶上时，会产生平滑的锥度。芯层优选通过火焰水解形成。在固结期间，两个芯层在波导的厚度尺寸上聚结成具有平滑锥形的单个均匀层。

10. 发明申请

US20120236247A1 High Extinction Ratio Liquid Crystal Optical Switch 有权
标题翻译：高消光比液晶光开关
公开(公告)号：US20120236247A1
公开(公告)日：2012-09-20
申请号：US13485052
申请日：2012-05-31
申请人： Haijun Yuan , Xuehua Wu , Christopher Lin , Giovanni Barbarossa
发明人： Haijun Yuan , Xuehua Wu , Christopher Lin , Giovanni Barbarossa
IPC分类号： G02F1/13
CPC分类号： G02F1/1313 , G02B5/3083 , G02B6/35 , G02B27/283 , G02F1/1326 , G02F1/133528 , G02F1/13363 , G02F1/31
摘要： An optical switch for performing high extinction ratio switching of an optical signal includes a beam polarizing element and one or more optical elements. The optical elements are configured to direct an optical signal along a first or second optical path based on the polarization state of the optical signal as it passes through the optical elements. The optical switch performs high extinction ratio switching of the optical signal by preventing unwanted optical energy from entering an output port by using an absorptive or reflective optical element or by directing the unwanted optical energy along a different optical path.
摘要翻译：用于执行光信号的高消光比切换的光开关包括光束偏振元件和一个或多个光学元件。光学元件被配置为当光信号通过光学元件时，基于光信号的偏振状态沿着第一或第二光路引导光信号。光开关通过使用吸收或反射光学元件防止不想要的光能进入输出端口或通过沿着不同的光路引导不想要的光能来执行光信号的高消光比切换。

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